2 * Copyright (c) 1983-2003, Regents of the University of California.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the University of California, San Francisco nor
15 * the names of its contributors may be used to endorse or promote
16 * products derived from this software without specific prior written
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
22 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 * $OpenBSD: hunt.c,v 1.13 2008/03/17 09:17:56 sobrado Exp $
32 * $NetBSD: hunt.c,v 1.8 1998/09/13 15:27:28 hubertf Exp $
33 * $DragonFly: src/games/hunt/hunt/hunt.c,v 1.2 2008/09/04 16:12:51 swildner Exp $
48 #include <sys/types.h>
49 #include <sys/socket.h>
50 #include <sys/ioctl.h>
51 #include <sys/sockio.h>
53 #include <netinet/in.h>
56 #include <arpa/inet.h>
64 #define __attribute__(x)
67 FLAG Am_monitor = FALSE;
69 char map_key[256]; /* what to map keys to */
71 char *Send_message = NULL;
73 static char *Sock_host;
74 static char *use_port;
75 static FLAG Query_driver = FALSE;
76 static FLAG Show_scores = FALSE;
77 static struct sockaddr Daemon;
80 static char name[NAMELEN];
81 static char team = '-';
85 static void dump_scores(void);
86 static long env_init(long);
87 static void fill_in_blanks(void);
88 static void leave(int, const char *) __attribute__((__noreturn__));
89 static void sigterm(int);
90 static int find_driver(void);
94 * Main program for local process
97 main(int ac, char **av)
104 enter_status = env_init((long) Q_CLOAK);
105 while ((c = getopt(ac, av, "Sbcfh:l:mn:op:qst:w:")) != -1) {
107 case 'l': /* rsh compatibility */
109 (void) strlcpy(name, optarg, sizeof name);
113 if (!isdigit(team) && team != ' ') {
114 warnx("Team names must be numeric or space");
127 case 'q': /* query whether hunt is running */
131 Send_message = optarg;
138 Server_port = atoi(use_port);
141 enter_status = Q_CLOAK;
144 enter_status = Q_FLY;
147 enter_status = Q_SCAN;
154 fputs("usage: hunt [-bcfmqSs] [-n name] [-p port] "
155 "[-t team] [-w message] [[-h] host]\n",
162 else if (optind + 1 == ac)
163 Sock_host = av[ac - 1];
165 if (Server_port == 0) {
166 se = getservbyname("hunt", "udp");
168 Server_port = ntohs(se->s_port);
170 Server_port = HUNT_PORT;
179 struct driver *driver;
181 probe_drivers(C_MESSAGE, Sock_host);
182 while ((driver = next_driver()) != NULL) {
183 printf("%d player%s hunting on %s!\n",
185 (driver->response == 1) ? "" : "s",
186 driver_name(driver));
194 errx(1, "otto mode incompatible with monitor mode");
195 (void) strlcpy(name, "otto", sizeof name);
200 (void) fflush(stdout);
203 if (LINES < SCREEN_HEIGHT || COLS < SCREEN_WIDTH) {
205 leave(1, "Need a larger window");
207 display_clear_the_screen();
208 (void) signal(SIGINT, intr);
209 (void) signal(SIGTERM, sigterm);
210 /* (void) signal(SIGPIPE, SIG_IGN); */
214 while (!find_driver()) {
217 leave(1, "No one playing");
220 if (Sock_host == NULL) {
222 leave(1, "huntd not running");
233 Socket = socket(Daemon.sa_family, SOCK_STREAM, 0);
238 if (setsockopt(Socket, SOL_SOCKET, SO_USELOOPBACK,
239 &option, sizeof option) < 0)
240 warn("setsockopt loopback");
243 if (connect(Socket, &Daemon, Daemon.sa_len) == -1) {
244 if (errno == ECONNREFUSED)
249 do_connect(name, team, enter_status);
250 if (Send_message != NULL) {
252 if (enter_status == Q_MESSAGE)
258 if ((enter_status = quit(enter_status)) == Q_QUIT)
267 * Set Daemon to be the address of a hunt driver, or return 0 on failure.
269 * We start quietly probing for drivers. As soon as one driver is found
270 * we show it in the list. If we run out of drivers and we only have one
271 * then we choose it. Otherwise we present a list of the found drivers.
276 int last_driver, numdrivers, waiting, is_current;
277 struct driver *driver;
282 probe_drivers(Am_monitor ? C_MONITOR : C_PLAYER, Sock_host);
288 if (numdrivers == 0) {
289 /* Silently wait for at least one driver */
290 driver = next_driver();
291 } else if (!waiting || (driver =
292 next_driver_fd(STDIN_FILENO)) == (struct driver *)-1) {
293 /* We have a key waiting, or no drivers left */
295 if (c == '\r' || c == '\n' || c == ' ') {
298 else if (last_driver != -1)
299 c = 'a' + last_driver;
301 if (c < 'a' || c >= numdrivers + 'a') {
305 driver = &drivers[c - 'a'];
309 if (driver == NULL) {
311 if (numdrivers == 0) {
313 return 0; /* Failure */
315 if (numdrivers == 1) {
316 driver = &drivers[0];
322 /* Use the preferred host straight away. */
326 if (numdrivers == 0) {
327 display_clear_the_screen();
329 display_put_str("Pick one:");
332 /* Mark the last driver we used with an asterisk */
333 is_current = (last_driver == -1 && Daemon.sa_len != 0 &&
334 memcmp(&Daemon, &driver->addr, Daemon.sa_len) == 0);
336 last_driver = numdrivers;
338 /* Display it in the list if there is room */
339 if (numdrivers < HEIGHT - 3) {
340 xname = driver_name(driver);
341 display_move(3 + numdrivers, 0);
342 snprintf(buf, sizeof buf, "%6c %c %s",
343 is_current ? '*' : ' ', 'a' + numdrivers, xname);
344 display_put_str(buf);
347 /* Clear the last 'Enter letter' line if any */
348 display_move(4 + numdrivers, 0);
351 if (last_driver != -1)
352 snprintf(buf, sizeof buf, "Enter letter [%c]: ",
355 snprintf(buf, sizeof buf, "Enter letter: ");
357 display_move(5 + numdrivers, 0);
358 display_put_str(buf);
364 display_clear_the_screen();
365 Daemon = driver->addr;
368 return 1; /* Success */
374 struct driver *driver;
378 probe_drivers(C_SCORES, Sock_host);
379 while ((driver = next_driver()) != NULL) {
380 printf("\n%s:\n", driver_name(driver));
383 if ((s = socket(driver->addr.sa_family, SOCK_STREAM, 0)) < 0) {
387 if (connect(s, &driver->addr, driver->addr.sa_len) < 0) {
392 while ((cnt = read(s, buf, sizeof buf)) > 0) {
393 /* Whittle out bad characters */
394 for (i = 0; i < cnt; i++)
395 if ((buf[i] < ' ' || buf[i] > '~') &&
396 buf[i] != '\n' && buf[i] != '\t')
398 fwrite(buf, cnt, 1, stdout);
412 * We had a bad connection. For the moment we assume that this
413 * means the game is full.
418 leave(1, "lost connection to huntd");
423 * version number mismatch.
429 leave(1, "Version number mismatch. No go.");
434 * Handle a terminate signal
437 sigterm(int signo __unused)
444 * Remove a '\n' at the end of a string if there is one
451 cp = strrchr(s, '\n');
458 * Handle a interrupt signal
461 intr(int dummy __unused)
467 (void) signal(SIGINT, SIG_IGN);
468 display_getyx(&y, &x);
469 display_move(HEIGHT, 0);
470 display_put_str("Really quit? ");
480 (void) write(Socket, "q", 1);
481 (void) close(Socket);
485 else if (ch == 'n') {
486 (void) signal(SIGINT, intr);
492 display_put_str("(Yes or No) ");
503 * Leave the game somewhat gracefully, restoring all current
507 leave(int eval, const char *mesg)
513 display_move(HEIGHT, 0);
519 if (errno == 0 && mesg != NULL)
521 else if (mesg != NULL)
528 * initialise game parameters from the HUNT envvar
531 env_init(long enter_status)
534 char *envp, *envname, *s;
536 /* Map all keys to themselves: */
537 for (i = 0; i < 256; i++)
538 map_key[i] = (char) i;
541 if ((envp = getenv("HUNT")) != NULL) {
542 while ((s = strpbrk(envp, "=,")) != NULL) {
543 if (strncmp(envp, "cloak,", s - envp + 1) == 0) {
544 enter_status = Q_CLOAK;
547 else if (strncmp(envp, "scan,", s - envp + 1) == 0) {
548 enter_status = Q_SCAN;
551 else if (strncmp(envp, "fly,", s - envp + 1) == 0) {
552 enter_status = Q_FLY;
555 else if (strncmp(envp, "nobeep,", s - envp + 1) == 0) {
559 else if (strncmp(envp, "name=", s - envp + 1) == 0) {
561 if ((s = strchr(envp, ',')) == NULL) {
563 strlcpy(name, envname, sizeof name);
567 strlcpy(name, envname, sizeof name);
570 else if (strncmp(envp, "port=", s - envp + 1) == 0) {
572 Server_port = atoi(use_port);
573 if ((s = strchr(envp, ',')) == NULL) {
580 else if (strncmp(envp, "host=", s - envp + 1) == 0) {
582 if ((s = strchr(envp, ',')) == NULL) {
589 else if (strncmp(envp, "message=", s - envp + 1) == 0) {
590 Send_message = s + 1;
591 if ((s = strchr(envp, ',')) == NULL) {
598 else if (strncmp(envp, "team=", s - envp + 1) == 0) {
602 if ((s = strchr(envp, ',')) == NULL) {
608 } /* must be last option */
609 else if (strncmp(envp, "mapkey=", s - envp + 1) == 0) {
610 for (s = s + 1; *s != '\0'; s += 2) {
611 map_key[(unsigned int) *s] = *(s + 1);
612 if (*(s + 1) == '\0') {
620 printf("unknown option %s\n", envp);
621 if ((s = strchr(envp, ',')) == NULL) {
630 strlcpy(name, envp, sizeof name);
632 printf("unknown option %s\n", envp);
640 * quiz the user for the information they didn't provide earlier
649 if (name[0] != '\0') {
650 printf("Entering as '%s'", name);
651 if (team != ' ' && team != '-')
652 printf(" on team %c.\n", team);
656 printf("Enter your code name: ");
657 if (fgets(name, sizeof name, stdin) == NULL)
661 if (name[0] == '\0') {
662 printf("You have to have a code name!\n");
665 for (cp = name; *cp != '\0'; cp++)
668 printf("Illegal character in your code name.\n");
672 printf("Enter your team (0-9 or nothing): ");
676 else if (i == '\n' || i == EOF || i == ' ')
678 /* ignore trailing chars */
679 while (i != '\n' && i != EOF)
682 printf("Teams must be numeric.\n");